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Hydrogen Sulfide

Gas Name: 
Hydrogen Sulfide
Chemical Formula: 

H2S

Synonyms: 
Sewer Gas; Sour Gas

Product Uses, Sources & Applications

Hydrogen sulfide is created during the decomposition process and occurs naturally in natural gas.  Gas detection equipment or gas sensors should therefore be deployed in:

Hazards

Toxicity
Short Term (15-minute STEL*):
20
 ppm
Long-term (8-hr TWA*):
10
 ppm
*Based on OSHA regulation. Always consult local regulations directly.
Flammability
Lower Explosive Limit (LEL):
4.3% by volume
NIOSH Pocket Guide:
View pocket guide

Physical Properties

Appearance and Odor:
Colorless with an offensive odor described as that of rotten eggs.
Relative Density (air = 1.0):
1.188

Recommendations

Sensor Type:
Electrochemical Diffusion Type
Standard Range:
0-25, 0-50 or 0-100 ppm
Standard Trip Points:
10 ppm, 20 ppm
Recommended Sensor Mounting Height:
18 inches AFF.

How can Armstrong Monitoring help you?

Contact Us
Armstrong Monitoring
215 Colonnade Road South
Ottawa, Ontario, Canada
K2E 7K3
Toll Free: 
1 800 465 5777
Armstrong Monitoring
215 Colonnade Road South
Ottawa, Ontario, Canada
K2E 7K3
Toll Free: 
1 800 465 5777
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